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Unilateral acute maculopathy associated with adult onset hand, foot and mouth disease: case report and review of literature
Journal of Ophthalmic Inflammation and Infection volume 5, Article number: 2 (2015)
Acute maculopathy is a rare condition of unknown aetiology and Coxsackie virus is known to be associated with this macular chorioretinitis.
We report a case of acute unilateral maculopathy in a 35-year-old woman with concurrent hand foot and mouth disease. Furthermore, we display multimodal imaging (colour fundus photographs, autofluorescence, spectral domain ocular coherence tomography, fluorescein angiography and indocyanine green angiography) charting the course of the disease. The source of the virus was thought to be the patient's child. Empirical treatment with oral corticosteroids was commenced and the inflammation resolved, leaving a residual macular scar.
We present this case combined with the review of literature of adult onset Coxsackie-virus-associated retinitis. This case reiterates the fact that Coxsackie virus is an uncommon but important consideration in the differential diagnosis of chorioretinitis and posterior uveitis with atypical retinopathy.
A taxonomically diverse group of viral agents are known to affect the posterior segment of the eye, either as a primary infection or secondary to vascular sequelae . Viruses may invade the eye by direct inoculation or through metastatic spread via blood or nerves. Herpes viruses are the commonest viruses causing posterior segment infections . Coxsackie virus, one of the enteroviruses, is also known to infect the eye and can lead to conjunctivitis, keratoconjunctivitis and uveitis.
Coxsackie virus can lead to hand, foot and mouth disease (HFMD) which is a highly contagious condition predominantly affecting children . It is characterised by maculopapular or vesicular eruptions on the hands, feet and inside the mouth. It usually follows a benign and self-limiting course. Severe systemic complications include encephalitis, meningitis, pulmonary edema and myocarditis. There are limited case reports of Coxsackie virus causing infection in adults and sporadic reports of Coxsackie virus leading to ocular complications in adults .
We report a case of acute maculopathy in a 35-year-old female with concurrent hand, foot and mouth disease. Multimodal imaging, including previously undescribed autofluorescence findings, displays the outer retinitis and ensuing resolution.
A 35-year-old woman presented with a 1-day history of a right central scotoma and metamorphopsia which was preceded by viral exanthem and a macular rash over the hand and in the mouth. On examination, the dermatological findings were characteristic of HFMD, and there was an associated history of contact with the virus from the patient's daughter. Visual acuity was 20/20 in both eyes with right central scotoma. Fundus examination revealed right macular intraretinal haemorrhage, intraretinal thickening and retinal pigmentary changes temporal to the fovea (Figure 1A). No signs of vasculitis or chorioretinitis were seen peripherally. The left eye revealed no abnormalities. The following day the Snellen visual acuity had dropped to 20/80 in the right eye. Infrared imaging showed the presence of a figure of eight or dumb-bell-shaped lesion with abnormalities of the inner segment-outer segment (IS-OS) junction and hyperreflective debris along the retinal pigment epithelium (RPE) on the corresponding spectral domain ocular coherence tomography (SD-OCT), (Figure 1B). Fundus fluorescein angiography (FFA) showed significant macular leakage (Figure 1C) with no extra-macular abnormalities and no vasculitis. Indocyanine green angiography (ICGA) demonstrated blocked fluorescence in the corresponding area (Figure 1D). Oral prednisolone treatment was commenced with 60 mg/day once daily dose in the morning after breakfast (1 mg/kg body weight/day). Over the next few days, the scotoma became well defined and constricted. Corticosteroid therapy was tapered by 10 mg/day every week till 20 mg/day dose and subsequently tapered by 5 mg/day every week and stopped over 2 months. Visual acuity continued to improve over successive weeks to 20/20. Dermatological lesions subsided within 2 weeks of presentation. Follow-up FFA and ICGA did not reveal the presence of active disease (Figure 2A,B). ICGA showed irregular moth-eaten appearance of the choroidal vasculature with no areas of abnormal hypercyanescence. Residual scar remained in the right macula with intraretinal pigmentary change and resolution of subretinal fluid with a subretinal fibrotic scar on SD-OCT (Figure 2C). This correlated with subjective improvement in vision and scotoma. Autofluorescence revealed a hypofluorescent lesion at base line (Figure 3A), which over the next 4 days became morphologically similar to a dumb-bell-shaped maculopathy (Figure 3B). The autofluorescence lesion started constricting on subsequent follow-up (Figure 3C,D,E).
Coxsackie virus infection has been implicated in vitritis and posterior uveitis. Concurrent systemic infection, decreasing titers of B3 and B4 Coxsackie virus with resolving systemic and ocular disease has been reported [5,6]. There are very few cases of adult onset Coxsackie virus infection with concurred outer retinitis reported in the literature [5,6,2,7]. Likewise, unilateral acute idiopathic maculopathy has been associated with systemic comorbid conditions like orchitis and epididymitis suggesting either direct viral infection or an autoimmune response associated with viral infection .
An overview of the existing literature on the adult cases with possible Coxsackie virus related to outer retinitis or uveoretinitis is presented in Table 1. Our understanding of the disease progression and process has evolved with the application of constantly emerging technologies. In the reported case, we used different non-invasive and invasive imaging modalities such as color fundus photo, autofluorescence, SD-OCT, fundus fluorescein angiogram and indocyanine green angiogram to represent the changes in the macular lesion. Fundus photographs revealed irregular, circular area of mild white grey discoloration of the central macula which was gradually replaced by granular hyperpigmentation of the retina and retinal pigment epithelium as the disease progressed though the visual acuity improved. Retinal thinning and irregularity of the outer photoreceptor layer were the striking features on SD-OCT with the disease progression. However, outer photoreceptor layer appear to be normalising over the course of the disease and associated with improvement in visual acuity. Autofluorescence as a non-invasive tool corresponded to the clinically significant lesion on color fundus photographs. Characteristically, the macular lesion showed a complex heterogenous pattern of hyper- and hypo-autofluorescence with a clear demarcation line between hypo- and hyperautofluorescence. With resolution of the disease and associated with improvement in visual acuity, the lesion showed more hypo-autofluorescence with decreasing patches of hyperautofluorescence which was suggestive of loss of retinal pigment epithelium. There are no cases describing the use of autofluorescence as a follow-up tool in monitoring the associated retinal lesions. In this report, we have described the application of this non-invasive tool from the acute to resolved stage of the condition, suggesting that, similar to other conditions which affect the retinal pigment epithelium, autofluorescence has a role in monitoring disease progression .
Corticosteroids were administered in our patient given the rapid deterioration in vision, and there have been conflicting reports in the literature on the use of corticosteroids in unilateral acute idiopathic maculopathy with possible viral etiology. Our experience highlights that there was no progression of the viral retinopathy after administration of corticosteroids and also there was rapid recovery of vision.
This case reiterates the fact that Coxsackie virus is an uncommon but important consideration in the differential diagnosis of chorioretinitis and posterior uveitis with atypical retinopathy. A careful history of dermatological manifestations and appropriate examination should be undertaken as well as ascertainment of contact history of those with characteristic HFMD signs. In this case, autofluorescence was a useful non-invasive monitoring tool in monitoring of this outer retinal disease, and vision improved dramatically following systemic corticosteroid treatment.
The patient has given consent for the report to be published.
Fundus fluorescein angiogram
Hand foot mouth disease
Indocyanine green angiogram
Inner segment-outer segment junction
Spectral domain optical coherence tomography
Retinal pigment epithelium
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This work was supported by the National Institute for Health Research (NIHR) Biomedical Research Centre based at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology. The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health. Dr. Rupesh Agrawal is sponsored by the National Medical Research Council, Singapore for overseas research training fellowship.
The authors declare that they have no competing interests.
RA conceived the manuscript, performed the literature review and participated in clinical management of the case. KBh and KBa participated in clinical management of the case and helped to draft the manuscript. RL, PA and CP were involved in managing the case, provided intellectual content and revised the manuscript. All authors read and approved the final manuscript.
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Agrawal, R., Bhan, K., Balaggan, K. et al. Unilateral acute maculopathy associated with adult onset hand, foot and mouth disease: case report and review of literature. J Ophthal Inflamm Infect 5, 2 (2015). https://doi.org/10.1186/s12348-015-0034-3
- Acute maculopathy
- Posterior uveitis
- Coxsackie virus
- foot and mouth disease (HFMD)